I have the speed changes working but however on the client side the animation does not play for sprinting unless i set the sprint speed to like 5000? any ideas?
An input event occurs on the client and not on the server, so remove the switch has authority as it will never be authority. Simply call ‘Sprint Server’, and have your Sprint Server call Sprint Client.
You may also want to read up on networking in general. Your use of switch has authority is essentially telling the server to call an RPC on the server and the client to call an RPC on the client, which is pointless.
yeah this is a first attempt ill try that though thanks.
It Worked!!! thanks man 
No worries, don’t forget to mark the answer as accepted for other people who have the same problem.